These lecture notes written by James Dinwiddie in 1787 (?) discuss the study of pneumatics. He notes its connection with air and the atmosphere. Dinwiddie records several experiments involving barometers, fountains, and pumps.

This is volume 6 of the scientific journal entitled "Queries and Hints"; it contains queries numbered 795 to 1000. Composed by James Dinwiddie in April, 1787 while he was in London, the journal covers a variety of scientific ...